FR3032928A1 - DEVICE FOR FASTENING A WIPER DEVICE - Google Patents

Abstract

Device (100) for attaching a windscreen wiper device to a fastening element (50) of a vehicle, in particular a motor vehicle having a first attachment area (110) receiving the fastening element ( 50). A locking member (120) is rotatably mounted about a first axis of rotation (122), substantially perpendicular to the longitudinal extension direction of the attachment member (50) and the locking member (120). engaging the fastener (50) about the first axis of rotation (122) by a first rotation (124).

Description

FIELD OF THE INVENTION The present invention relates to a device for fastening a wiper device of a fastener element of a vehicle, in particular of a motor vehicle, as well as to a device vehicle windshield wiper and a method of attaching a device member of a windshield wiper device to a vehicle attachment member and a method for releasing the windscreen wiper device relative to the fastening element of a vehicle.

State of the art Typically, the windshield wiper devices comprise a wiper arm or windshield wiper lever carrying a wiper blade provided with a wiper lip moving on the window of the vehicle. The wiper arm is alternately displaced between a first motion reversing position and a second motion reversing position. For this, the wiper arm is connected by the drive shaft to a wiper motor. There is a multiplicity of boundary conditions to improve the windshield wiper system that must be taken into account. These are, for example, manufacturing or manufacturing cost, material costs and also the properties of the windscreen wiper device, in particular those of ensuring its operation under very diverse conditions of use as well as its longevity. in such conditions. In the case of a vehicle windscreen wiper system, account should also be taken of the continuing increase in the imposed cost conditions and the fact that the vehicles are used under a wide range of climatic conditions, for example extreme temperatures. are durable or vary with strong variations. Usually, windshield wiper devices, including wiper blades, have deteriorating effects if used regularly which reduces wiper quality. In addition, the wiper devices are exposed on the windshield or rear window of vehicles, including the passage of a washing tunnel with the risk of damaging or tearing the wiper device . Under these conditions, it is necessary to replace the worn or damaged wiper device 3032928 2. Usually, the replacement of a windshield wiper device is a relatively complicated operation as usually the windshield wiper devices are attached to the drive arm. OBJECT OF THE INVENTION Thus, the object of the invention is to develop wiper device fixing devices which can be replaced easily and with reduced means. In particular, there is a need for a fastening device for windscreen wiper devices which allows easy installation and requires little work, to the drive shaft of a vehicle or vice versa such disassembly. Thus and in summary, the present invention aims to develop a device for fixing a wiper device to remedy one or more of the above disadvantages or eliminate them.

DISCLOSURE AND ADVANTAGES OF THE INVENTION To this end, the invention relates to embodiments of a fastening device for fixing a wiper device to a fixing element of a motor vehicle. The fastening device comprises a first reception area in which the fastening element is inserted and a locking element rotatably mounted about a first axis of rotation, the first axis of rotation being substantially perpendicular to the first axis of rotation. longitudinal extension of the fastening element and the locking element making a catch with the fastener element by a first rotation about the first axis of rotation.

According to a development, the invention relates in particular to a vehicle wiper device and in particular to a motor vehicle. The windshield wiper device has a fastener and a windshield wiper blade mounted on the fastener. The attachment device comprises a first receiving region receiving a vehicle attachment member and a locking member rotatably mounted about a first axis of rotation substantially perpendicular to the direction of longitudinal extension of the attachment member, the locking element making a catch with the fastening element by a rotation about the first axis of rotation.

According to other developments, the subject of the invention is a method of fixing a device for fixing a windscreen wiper device to a fastening element of a vehicle. According to the method, the fastening element is introduced into a first receiving region 5 of the fixing device and a locking element of the fastening device is rotated about a first axis of rotation substantially perpendicular to the direction of rotation. longitudinal extension of the fastening element for making the engagement between the locking element and the fastening element.

According to other embodiments, the invention also relates to a method for releasing a device for attaching a windshield wiper device to a fastener of a vehicle. According to the method, the fastener locking member is rotated about the first axis of rotation substantially perpendicular to the longitudinal extension direction of the fastener to release the plug between the locking member and the fastener. fixing element and then the fixing element and the fixing device are moved apart. The fastening device according to the invention is installed in a simple manner on the drive shaft of a vehicle which it can disassemble. In particular, the fixing device according to the invention is mounted on the drive shaft of the vehicle without requiring special tools and it is dismounted under the same conditions. Thus, and by way of example, in the event of damage, the wiper blade can easily be replaced or a washing tunnel can be simply removed and then reinstalled. The fixing device and the mounting and dismounting method of the fixing device according to the invention make it possible to simply assemble and dismantle the windscreen wiper device. The fastener is connected by a simple rotational movement to the fastener which is the driving axis of the windshield wiper device. In case of damage, we can simply replace the wiper device; at the passage of a washing tunnel we can simply remove it and then reinstall it. According to some embodiments which may be combined with other embodiments, the locking member engages with the fastener, a force and / or shape connection by a simple rotation about the first axis of rotation. There is thus a fastening device which can firmly and securely attach to the fastener. It can in particular be avoided by the connection by force and / or by the shape that the fixing device is detached from the fastening element, for example during the operation of the windshield wiper. In some embodiments that may be combined with other embodiments, the fastener 10 includes a base body and the first receiving range is provided in the base body which allows simple and economical manufacture of the device. of fixation. For example, the first receiving range may be an aperture, a cavity, or a through hole in the fixture and particularly in the base body of the fixture. The fixing device can thus be mounted in a simple manner in the opening or the cavity or the through orifice by simply introducing the fixing element. According to some embodiments, the fastening device comprises a second reception range, for example in the base body, which makes it possible to receive the locking element, which corresponds to a simple and economical manufacture of the fixing device. According to some embodiments which may be combined with other embodiments, the locking member has a first segment and a second segment, the first segment being engaged with the securing member and the second segment being a means for securing the second segment. actuation. For example, the first segment and the second segment generally have an L shape which allows a simple and economical manufacture of the fixing device. This also makes it easy to take hold and open it under the same conditions. According to some embodiments which may be combined with other embodiments described herein, the plug opens with a second rotational movement opposite to the first rotational movement which allows this link to be released in a simple manner.

According to some embodiments, the first axis of rotation is substantially perpendicular to the second axis of rotation of the fastener. The fixing element is for example a drive shaft rotating about the second axis of rotation. The drive shaft is connected to the wiper motor for driving the wiper blade on the vehicle window. According to certain implementations, the fixing device comprises at least one stop element to limit the first rotational movement, which allows optimum positioning of the locking element to ensure a stable and firm grip between the locking element and the fastening element. According to some embodiments that can be combined with other described embodiments, the fastening device connects to a wiper blade, in particular removably.

The fixing device can thus be used in combination with different types of windscreen wiper blades. For example, in the event of damage to the wiper blade, replace only the wiper blade and re-use the fixing device, which reduces the cost of maintenance and / or repair.

According to the embodiments of the present invention, the wiper blade has an elongated at least partially flexible upper portion, an elongated at least partially flexible lower portion, a plurality of connecting members for connecting the upper and lower portions. the connecting elements being spaced from each other in the direction of longitudinal extension of the wiper blade being connected to the upper part and / or the lower part by a rotary joint. In particular, the connecting elements allow the movement of the upper part and the lower part relative to one another with a movement component in the longitudinal extension direction of the wiper blade. . Such Fin-Ray type windscreen wiper devices for vehicle windows are particularly advantageous and / or apply to a variety of fields.

The present invention will be described hereinafter in more detail with the aid of a wiper device fixing device shown in the accompanying drawings, in which: FIG. 1 is a diagrammatic presentation; 2A-2C is a perspective view of a fastener according to the invention, showing different perspective views of the fastener of FIG. 1 at different angles, FIGS. 3 (a) -3 (e). are diagrammatic representations of the fixing operations of a fastening device to a fastener of a vehicle according to the embodiments of the invention, FIG. 4 is a three-part diagram at different scales of a 5A is a diagrammatic representation of a windscreen wiper device comprising a wiper blade according to embodiments in the position according to other embodiments of the invention; 5B is a schematic representation of the wiper device of the embodiments of FIG. 5A in its position against a window, FIG. 6 is a schematic view of a windscreen wiper device. With a wiper blade according to other embodiments in the basic position, FIG. 7 is a schematic representation of the windscreen wiper device according to embodiments of the invention of FIG. position applied against a window. DESCRIPTION OF EMBODIMENTS FIG. 1 schematically shows an attachment device 100 according to embodiments of the invention. FIGS. 2A-2C are perspective views at different angles of the fixing device 100 of FIG. 1. The fastening device 100 comprises a first reception zone 110 into which the vehicle fastening element 50 is inserted and a locking member 120 rotatably mounted about a first axis of rotation 122; the first axis of rotation 122 is substantially perpendicular to the direction of longitudinal extension 51 of the fixing element 50. The blocking element 120 is engaged with the fixing element 50 by a first rotation 124 around the first The first fastening device 100 can thus be connected by a single rotational movement to the fastening element 50 which may be the drive shaft or a drive shaft. In particular, the assembly does not require any tools. The fixing device 100 according to the embodiments described here is for example used for the rear window wiper device. However, the present description is not limited to this application and the fixing device 100 according to the embodiments described can also be applied to windshield wiper devices.

According to some embodiments which may be combined with other embodiments, the locking member 120 develops a force and / or shape connection with the fastening member 50 by a first rotation 124 about the first axis of rotation 122. The fixing device 100 can thus be firmly and securely mounted on the fastening element 50. The connection by force and / or by the shape in particular prevents the fastening device 100 from detaches from the fastener 50 of the vehicle, in particular, for example during operation of the wiper device. According to embodiments of the description which can be combined with other embodiments, the "force connection" corresponds to all the links which are realized by the transmission of force (for example links by the force, frictional bonds). In particular, such connections use thrust forces and / or friction forces. The joining of such bonds is achieved by the applied force. The connecting element 50 may for example have a surface structure to increase the friction between the fastening device 100 and in particular the locking element 120 and the fastening element 50. Thus, the fastening device 100 is mounted securely. and securely on the fastener 50. For example, at least a portion of the surface of the fastener 50 and / or the surface of the locking member 120 will be roughened. According to embodiments of the description which can be combined with other embodiments, the "shape bond" corresponds to all the links which are obtained by the interpenetration of at least two elements ( binding by form). In particular, the elements can not release the mechanical connection without transmission of force or when this transmission of force is interrupted. The fixing element 50 comprises, for example, a cavity 10 receiving the locking element 120, which allows a secured and secured mounting of the fixing device 100 to the fixing element 50. In certain embodiments that can be combined in other embodiments, the engagement which is effected by a second rotation opposite the first rotation 124 can be released.

This frees the plug in a simple manner. In embodiments, the locking member 120 pivots between a first position and a second position. In particular, the first rotation (first pivot) 124 is defined between the first position and the second position or can be done between these two positions. The first position may be a released position, i.e. a position in which the locking member 120 is not engaged with the securing member 50. The second position may be a position in which the blocking element 120 is engaged with the fixing element 50.

Typically, the first rotation 124 and / or the second rotation corresponds to a pivoting in a range of between 45 ° and 135 ° and in particular a pivoting of about 90 °. The first rotation 124 and / or the second rotation of the locking element 120 between the first position and the second position is a pivoting in a range between 45 ° and 135 ° and in particular a pivoting of about 90 ° . According to some embodiments which may be combined with other embodiments, the attachment device 100 is connected to a wiper blade (not shown), in particular by a releasable connection. The fixing device 100 can thus be applied in combination with different types of windscreen wiper blade. Also and by way of example, if the wiper blade is damaged, it will be sufficient to replace it while the fixing device 100 can still be used. This reduces the cost of maintenance and / or repair. According to the embodiments described herein, the fixing device 100 may also be called an "adapter". In some embodiments that can be combined with other described embodiments, the fastener 100 includes a base body 130 and the first reception area 110 is formed in the base body 130. a simple and economical manufacture of the fixing device 100. The base body 130 may have for example a substantially rectangular shape. The first receive range 110 has a first segment and a second segment adjacent to the first segment. The first reception range 110 may be performed in the first segment. In the second segment, there will be a mounting device 140 on the wiper blade side. The windscreen wiper blade mount device 140 is adapted to be connected to the wiper blade (not shown). For example, the windscreen wiper blade assembly 140 is adapted to effect a force and / or shape connection with the wiper blade. According to embodiments, the windscreen wiper blade mounting device 140 comprises a closure means, for example a clamping closure connection. According to some embodiments that may be combined with other embodiments described herein, the first receiving zone 110 has an opening, a cavity, or a through hole in the fastener 100 and particularly in the base body 130. of the fastening device 100. The first receiving area 110 may be substantially cylindrical in shape. Thus, the fastening device 100 is simply mounted by the introduction of the fastener 50 into the opening, cavity or through hole. In some embodiments, the securing device 100 has a second receiving range 150, for example in the base body 130 or having a housing of the locking member 3032928. The fastening device 100 is thus manufactured in such a way that simple and economical. Typically, the first receive range 110 and the second receive range 150 may be connected. Thus, the blocking member 120 in the second receiving range may enter or pass into the first receiving range 110 to engage the attachment member 50. In some embodiments that may be combined with In other embodiments described herein, the second receiving pad 150 includes at least one undercut portion 152 which receives at least a portion of the lock member 120. For example, the lock member 120 includes at least one projecting portion 126 which is housed in at least one undercut portion 152. The projecting portion may be pivotally mounted in the undercut portion 152. By way of example, the projecting portion 126 and the undercut 152 form the first pivot axis 122. The undercut portion 152 may also be referred to as the "guide hole". In some embodiments that may be combined with other embodiments described herein, the blocking member 120 has a first segment 127 and a second segment 128; the first segment 127 engages with the fastening element 50 and / or the second segment 128 constitutes an actuating installation. In certain embodiments that can be combined with other embodiments described herein, by actuating the maneuvering device, for example by pushing, the setting is effected and / or released. In particular, by actuating the actuating device is created the first rotation (first pivoting) 124 to achieve the setting and the second rotation (second pivot) opposite the first rotation 30 to release the plug. For example, by pushing the actuating installation, the first pivot is produced and pulling the actuating installation produces the second pivoting. Typically, the actuation installation is in the form of a lever.

In some embodiments, the first segment 127 and the second segment 128 are substantially L-shaped. The first segment 127 may be a first branch of the L-shape and the second segment 128 may be the second branch of this form. in L.

In some embodiments, the first axis of rotation 122 is substantially perpendicular to the second axis of rotation 52 of the fastener 50. The fastener 50 is, for example, the drive shaft rotating about the second axis. The drive shaft is connected to the wiper motor to move the wiper blade on the vehicle window. According to the embodiments, the first axis of rotation 122 is substantially perpendicular to the direction of longitudinal extension of the wiper blade (referenced 8 in FIGS. 5-7). The term "substantially perpendicular" also encompasses embodiments in which there is a deviation of a few degrees from the exactly perpendicular orientation; this difference can range, for example, up to 10 ° or even up to 20 °. FIGS. 3 (a) - (e) are schematic representations of the attachment operation of the attachment device 100 to the vehicle attachment member 50 according to the embodiments of the invention. FIGS. 3 (a) - (e) show, in particular, the succession of steps of a method of fixing a device 100 for attaching a windscreen wiper device to the fastening element 50 of a vehicle according to embodiments of the invention. The method comprises inserting the fastener 50 into the first receiving region of the fastener 100 and rotating (pivoting) the locking member 120 of the fastener 100 about the first axis of rotation which is substantially perpendicular to the direction of longitudinal extension 51 of the fastener 50 for making the engagement between the locking member 120 and the fastener 50. The fastening device 100 may be made according to the embodiments described here. According to FIGS. 3 (a) -3 (c), the blocking element 120 is placed in the second reception range, for example after insertion of the fixing element 50 into the first receiving region of the fixing device. 100. The locking element 120 and in particular at least 3032928 12 a projecting portion 126 are housed in the undercut portion 152. The locking element 120 can slip or sink to its end position race, for example with the finger of the user.

As shown in FIGS. 3 (d) and 3 (e), the first rotation (first pivoting) 124 achieves the engagement between the locking member 120 and the fixing member 50. According to some embodiments which can be combined with other embodiments described herein, the locking element 120 is rotated by about 90 ° to make the engagement with the securing member 50. The catch between the locking member 120 and the fastener 50 is a detachable link. The plug can be released according to the method of the embodiments described herein. The method comprises rotating the locking member 120 of the fastener 100 about a first axis of rotation substantially perpendicular to the longitudinal extension direction 51 of the fastener member 50 to release the taken between the locking member 120 and the fixing member 50 and making it possible to disengage from the fixing element 50 and the fixing device 100. The fixing device 100 corresponds to the embodiments described here. Figure 4 shows schematically and by partial representation a fastener 200 corresponding to other embodiments of the invention. The description of the fixing device made with reference to FIGS. 1 to 3 applies analogously to the embodiment of FIG. 4 and the description given below is limited to the differences. According to this embodiment which can be combined with other embodiments described herein, the fastener 200 comprises at least one abutment or installation member 210 for limiting the first rotation (first pivoting). The abutment member 210 is provided in the base body 130. The abutment or installation member 210 may also be referred to as a "safety abutment" in certain embodiments.

Typically, the abutment or installation member 210 is mounted so that the second segment 128 (e.g. the actuating installation) comes against the abutment member or the installation member 210 and thus limits the first rotation (first pivoting) after making the engagement between the locking element 120 and the fixing element 50. The stop element or installation element 210 is for example designed so that the second segment 128 (actuating installation) encounters the stop element or the installation element 210 for a rotation of about 90 °.

As described with reference to FIG. 1, the locking member 120 is pivotable between the first position and the second position. The locking element or installation element 210 is for example in a range of the second position. Various aspects of an exemplary windscreen wiper device will be described hereinafter for which the embodiments described herein of the attachment device constitute particularly advantageous solutions. FIGS. 5A and 5B are diagrammatic representations of a wiper blade 2 in its basic position and in its position against the window pane 4 according to the embodiments of the wiper device of FIG. 'invention. The wiper blade 2 can wipe the window 4 of a vehicle, for example a motor vehicle. According to the embodiments, the wiper blade 2 has an elongated upper portion 10 and an elongated lower portion 12; these two parts are at least partially flexible. The lower part 12 is turned against the window 4 for the operation of the windscreen wiper device. Several connecting elements 18 connect the upper part 10 and the lower part 12. The connecting elements 18 are spaced apart in the direction of longitudinal extension 8 of the wiper blade being connected by rotation joints 20 to the upper part 10 and / or the lower part 12. The connecting elements 18 allow the movement of the upper part 10 and the lower part 12 with respect to one another with a movement component in the direction of movement. the longitudinal extension 8 of the ice-soot broom 2. The connecting elements are connected to the upper part 10 in the respective upper link position and to the lower part 12 in the respective lower link position. For example, at the link positions there will be a rotation joint 20. The movement of the upper part 10 and the lower part 12 relative to each other does not substantially change the distance between the high link position and low link position for the same link element; this means that the distance remains constant within a range of, for example ± 1 mm, in particular ± 0.3 mm.

In the direction of longitudinal extension 8 of the wiper blade 2, the distance between the upper part 10 and the lower part 12 decreases from the wiper blade head at least in the regions of the wiper blade 2. longitudinal extension 8 of the wiper blade 2 or in the main part of the longitudinal extension 8 of the windscreen wiper blade 2 (see FIGS. 5A, 5B, 6 and 7). Starting from the head end, the height of the wiper blade 2 decreases in triangular areas into the zones of the longitudinal extension 8. For example, according to the embodiments, for a set of elements of link 18, there will be a length of connecting members 18 so that the connecting members 18 near the wiper blade head is larger than the opposite side, i.e. connecting link 34 of the wiper blade 2 in the direction of longitudinal extension 8. According to this embodiment, there are at least 5 connecting elements and in particular at least 7 connecting elements.

According to the embodiments, the wiper blade 2 has a wiping lip (not shown) on the lower portion 12 of the wiper blade 2. The wiping lip is typically located on the wiper blade 2. the lower side of the lower portion 12 opposite the upper portion 10. The wiping lip is applied against the window of the vehicle to wipe. For reasons of readability, the wiper lip is not shown in the figures. Both the upper part 10 and the lower part 12 are flexible beams or can be made as flexible beams. It is equally possible that only a portion of the upper portion 10 and / or the lower portion 12 are flexible. According to this embodiment which can be combined with other embodiments, the upper part and / or the lower part 12 use a material having a modulus of elasticity in a range between 0.005 kN / mm 2 and 0. , 5 kN / mm 2 and especially 0.01 kN / mm 2 and 0.1 5 kN / mm 2. This provides the flexibility required for the upper part 10 and the lower part 12. Appropriately shaped sections of the upper part 10 and the lower part 12 will thus give optimum flexural rigidity. The wiper device comprises a fixing device 100 according to embodiments described herein. The fastening device 100 may be connected to a wiper blade-side attachment part, forming part of the wiper blade 2 or connected directly to the upper part 10 or to the lower part 12. The device The windscreen wiper may be connected by the attachment device 100 to the vehicle 15 or to the drive shaft of a wiper drive unit 32 (wiper motor) of the vehicle. On the opposite side to the attachment device 100 or to the wiper blade-side attachment member in the longitudinal extension direction 8 of the wiper device, the upper part 10 and the lower part 12 are connected to the connecting position 34. The upper part 10 and the lower part 12 are connected to each other by connecting elements 18. The connecting elements 18 are designed so that the distance from the connecting position at the upper part 10 and the distance from the connecting position with the lower part 12 varies at most ± 1 mm, in particular at most ± 0.3 mm. This corresponds for example to the thermal expansion and / or the setting in traction or compression. The connecting elements 18 are in principle substantially non-elastic, ie the effect of the connecting elements 18 is to transmit a force between the upper part 10 and the lower part 12 without elasticity effect. The connecting elements 18 are attached to the inner long sides facing the upper part 10 and the lower part 12 by rotation joints 20. Typically, the rotation joints 20 are hinges. These include rotation joints 20 in the form of film hinges. This solution is especially advantageous if the upper part 10, the lower part 12 and / or the connecting elements 18 are made of a plastic material or are coated with a suitable plastic material. According to the characteristic embodiments described herein which can be combined with other embodiments, the rotary joint 20 is selected from the following group: hinge, film-hinge, shrinkage of the material to reduce rigidity in accordance with torsion axis, articulation with an axis of rotation, means for connecting the upper part 10 to the connecting element 18 or 10 to connect the lower part 12 to the connecting element 18 which allows the sliding of the lower part 12 by relative to the upper part 10 in the direction of longitudinal extension 8, etc. Embodiments in which the hinges 20 are film hinges or hinge-films thus constitute a very simple embodiment for joints of a Fin-Ray wiper blade (embodiment of the "radiated fin" type). "). The wiper blade 2 is provided in one piece, including a single piece completed at the output of the production line. According to the embodiments, the hinge films have a very high extensibility. This is for example ensured by the material selected from the group PP, PE, POM and PA. Alternatively, the hinge films may also be made of one or more materials of a group comprising TPE (thermoplastic elastomer), for example TPE-S, TPE-O, TPE-U, TPEA TPE-V and TPE-E.

The connecting elements 18 are spaced apart in the direction of longitudinal extension 8 of the wiper blade 2. According to differences advantageously less than 50 mm and in particular less than 30 mm. This results in a windscreen wiper device having a particularly high degree of flexibility and in particular its lower part 12 and a good adaptation to the curvature or variations of curvature of the window to be wiped. FIG. 5B schematically shows the windscreen wiper blade 2 of FIG. 5A in its position against the window pane 4. As the window pane 4 has a curvature, when the wiper blade 2 is applied against the window pane 4, pushing forces are exerted on the lower part 12. As the upper part 10 and the lower part 12 are flexible beams and the connecting elements 12 are connected by rotation of the upper part 10 and the lower part 12, there will be a relative displacement of the upper part 10 and the lower part 12. Under the effect of the thrusts exerted from below on the lower part 12, the wiper blade 2 flexes in the direction from which the thrust forces arrive and which then apply precisely against the curvature of the window. The structure of the embodiments described herein means that a force applied to the lower portion 12 (through the pane 4) by reference to the lower portion 12 is in the direction from which the force is coming. This results from the connection of the upper part 10 and the lower part 12 to the connection position 34, to the shape and articulation of rotation 20 at the connection between the connecting elements 18 and the upper part. or the lower part. The wiper device according to the embodiments described herein utilizes the effect of the caudal fins of certain fish which, under lateral thrust, do not escape in the direction of the thrust, but in the direction opposed by taking a curved shape, that is to say in the direction 20 from which the pressure comes. This principle is also called the principle of "radiated fins" or Fin-Ray principle. Thus, the wiper device according to the invention has the advantage of better adaptation to the window 4 of a vehicle. In the case of conventional windscreen wiper blades, this upper portion is usually rigidly, i.e., non-flexible. Figures 6 and 7 show schematic representations of a wiper blade 2 of a vehicle wiper device, including a motor vehicle; the wiper blade is shown in the basic position (FIG. 6), that is to say in the unsolicited state and in the position applied against the window pane 4 (FIG. 7) according to the embodiments described here . The wiper blade 2 has an elongate upper portion and an elongate lower portion 12 which are at least partially flexible. Several connecting elements 18 connect the upper part 10 and the lower part 12; the connecting elements 18 are spaced apart in the direction of longitudinal extension 8 of the wiper blade 2. The connecting elements 18 are designed to allow the movement of the upper part 10 and the lower part 12 relative to each other with a component of movements in the direction of longitudinal extension 8 of the wiper blade 2. The connecting elements 18 are also mounted with respect to the lower part 12 so that in the unsolicited state of the wiper blade 2, the angle α of the respective longitudinal axis 24 of the connecting elements 18 with respect to the lower part 12 varies at least partially in the direction of longitudinal extension 8 wiper blade 2 and 10 in particular in a continuous or monotonous or strictly monotonous variation. For the wiper blade 2 shown in FIG. 6, in the unsolicited state, the angles α of the respective longitudinal axes 24 of the connecting elements 18 with respect to the lower part 12 and which vary in the direction of longitudinal extension 8 of the windscreen wiper 2 bear the references to 1, a2, a3, ... an-1, an. When the wiper blade 2 is in the biased state, that is to say when it is in position against the window 4, as shown for example in FIG. 7, the angle of the longitudinal axes 24 respective connecting elements 18 with respect to the lower part 12 are shown by comparison with the unsolicited state. To express this situation, the angles of the respective longitudinal axes 24 of the connecting elements 18 with respect to the lower part 12 and which vary in the direction of longitudinal extension 8 of the wiper blade 2 are shown for the blade broom. wiper 2 of Figure 7 which is in position against the window 4 and thus bears the references a'1, a'2, a'3, ... a'n-1, a'n. According to some embodiments, at least two connecting elements have different angles, in particular at least four connecting elements have different angles each time. For example, the angle may be between 5 ° and 45 °. According to other embodiments of the description, at least five connecting elements have an angle with respect to the lower part which lies in a position between 60 ° and 120 °. According to the embodiments of the wiper device which can be combined with other embodiments, the wiper blade 2 has at least a first zone in which the angle of rotation of the wiper blade 2 longitudinal axis 24 of the connecting elements 18 with respect to the lower part 12 decreases in the direction of longitudinal extension 8 of the wiper blade 2 towards the end of the wiper blade and in particular according to a monotonous reduction and most particularly, a strictly monotonous diminution. The wiper blade 2 may also have a second zone in which the angle α has longitudinal axes 24 of the connecting elements 18 with respect to the lower portion 12 decreases in the direction of longitudinal extension 8 of the broom. wiper 2 according to a wiping blade angle which here increases especially in a strictly monotonous manner. According to the embodiments as for example in FIGS. 6 and 7, the second range of the wiper blade 2, for which the angle α of the longitudinal axis 24 of the connecting element 18 increases with respect to the lower portion 12, in the direction of longitudinal extension 8 of the wiper blade 2 is moved towards the end of the wiper blade to an inner position of the wiper blade 2 near the device In this way, the windscreen wiper device adapts particularly well to the curvature of the window pane 4. In addition, the application pressure as even as possible of the windscreen wiper device against the window 4 also ensures a uniform distribution of the forces of the wiper device which is synonymous with excellent quality of wiping.

According to embodiments of the wiper blade 2 which can be combined with other embodiments, the connecting elements 18, especially in the unsolicited state of the wiper blade 2 are attached to the lower part 12 so that the longitudinal axes 14 of the connecting elements 18 have angles an, with respect to the lower part 12 which are between a lower angular limit anu and an upper angular limit ano. According to the embodiments, the angular lower limit anu is 10 °, in particular anu = 16 °, and in particular anu = 20 ° and the upper or lower angular limit ano = 80 ° is in particular ano = 90 ° and in particular ano = = 100 °.

This ensures a particularly good transmission of a force exerted on the lower part 12 and applied to the upper part 10. According to the embodiments of the windscreen wiper device which can be combined with other embodiments. , the connecting elements 18 are corrected so that the distance between the upper portion 10 and the lower portion 12 varies at least partially in the direction of longitudinal extension 8 of the wiper blade 2. In particular, in a first As the area decreases continuously and a second zone is permanently enlarged, the distance between the upper part 10 and the lower part 12 in the direction of longitudinal extension 8 of the wiper blade may comprise a range in wherein the distance between the upper portion 10 and the lower portion 12 in the direction of longitudinal extension 8 of the wiper blade 2 is substantially constant. The distance between the upper part 10 and the lower part 12 according to the fixing device 100 or the wiper blade side fixing part is greater than that at the opposite end is the connecting position 34. embodiments of the windscreen wiper blade 2 which can be combined with other embodiments, the internal deviation on the fastening device 100 or the windscreen wiper blade attachment part is at least 15 mm and in particular of at least 25 mm and in a very particular way of at least 35 mm. According to the embodiments which can be combined with other embodiments, the external deviation is at least 10 mm, in particular at least 12, 25 mm and particularly advantageously 15 mm. Depending on the embodiments that can be combined with other embodiments, the average distance is at least 7.5 mm and in particular the average distance of 9 mm will be replaced by the minimum distance of 12.5 mm.

As shown by way of example in FIGS. 6 to 7, the connecting elements 18 according to the embodiments which can be combined with other embodiments are hingedly connected to the lower part 12 and / or the upper part 10. In particular, the connecting elements 18 are connected to the lower part 12 and / or to the upper part 10 by a first hinge film 20. This first hinge-film 20 can be made in one piece. only one piece with the connecting element 18 or the upper part 10 and / or the lower part 12. The one-piece production of the film-hinge allows simple and economical manufacture.

According to the embodiments of the wiper blade 2 which can be combined with other embodiments presented herein, the wiper blade 2 has a first zone with a first curvature co <0 and a second area with a second curvature co> 0. The wiper blade 2 according to embodiments of the invention may also have a third range with a third curvature co <0; the second zone of the wiper blade 2 with the second curvature co> 0, being between the first zone with the first curvature co <0 and the third zone with the curvature co <0 as shown for example in FIG. 6. There is thus a windscreen wiper device which provides a very widely uniform application pressure against the window pane 4. In addition, the windshield wiper device improves the adaptation to the glass and the quality of the glass. 'wiping.

20 3032928 22 NOMENCLATURE OF MAIN ELEMENTS 2 Wiper blade 4 Glass 5 8 Longitudinal extension 10 Upper part 12 Lower part 18 Connecting element 20 Rotation joint / ball joint 10 24 Connection position of the wiper blade 2 50 Fastening element 51 Longitudinal extension 52 Undercut part / second axis of rotation of the fastening element 50 15 100 Fixing device 110 First receiving surface 120 Locking element / safety element 122 First axis of rotation / pivoting axis 124 First rotation / first pivoting 20 126 Projecting 127 First segment 128 Second segment 130 Base body 140 Windscreen wiper blade mounting device 25 150 Second receiving range 152 Undercut part 200 Device Fixing element 210 Stop or distribution element at 1-year-1, an Angular variation in the stressed state 30 a'1, a'2, a'3, ... a'n-1, a'n Angle for a wiper blade 2 35

Claims (11)

1) Fastening device (100, 200) of a wiper device to a fastening element (50) of a motor vehicle having a first receiving region (110) receiving the fastening element (50). ), a locking member (120) rotatably mounted about a first axis of rotation (122), said first axis of rotation (122) being substantially perpendicular to the direction of longitudinal extension of the attachment member (50); and the locking element (120) engaging the fastening element (50) about the first axis of rotation (122) by a first rotation (124). 2) Fastening device (100, 200) according to claim 1, characterized in that the locking element (120) makes a connection by force and / or shape with the fastening element (50) by a first rotation (124) around the first axis of rotation (122). 3) Fastening device (100, 200) according to claim 1, characterized in that it comprises a base body (130) in which is formed the first receiving range (110). 4) Fastening device (100, 200) according to claim 3, characterized in that the first receiving region (110) is an opening, a cavity or a through hole in the base body (130) of the fastening device (100). Fixing device (100, 200) according to claim 3, characterized in that it comprises a second reception zone (150) formed in the base body (130) and receiving the locking element (120) . Fixing device (100, 200) according to Claim 1, characterized in that the locking element (120) has a first segment (127) and a second segment (128), the first segment (127) ) engaging the fastening element (50) and the second segment (128) as an actuating installation. 7) Fastening device (100, 200) according to claim 6, characterized in that the first segment (127) and the second segment (128) are generally L-shaped. 8 °) Fixing device (100, 200) according to claim 1, characterized in that the plug can be released by a second rotation in the opposite direction to the first rotation (124). Fastening device (100, 200) according to claim 1, characterized in that the first axis of rotation (122) is substantially perpendicular to the second axis of rotation (52) of the fastening element (50). 10 °) Fixing device (100, 200) according to claim 1, characterized in that it comprises at least one stop element or stop element (210) to limit the first rotation. 11 °) Fixing device (100, 200) according to claim 1, characterized in that it is connected to a wiper blade and in particular removably. 12 °) A vehicle windscreen wiper device, in particular a motor vehicle, comprising a fastening device (100) according to any one of claims 1 to 11, and a windscreen wiper blade (2) installed on the fixing device (100). A windscreen wiper device according to claim 12, characterized in that the windscreen wiper blade has an elongated and at least partially flexible upper portion (10), an elongated lower portion (12), ) at least partially flexible, - a plurality of connecting elements (18) for connecting the upper part (10) and the lower part (12), the connecting elements (18) being spaced from each other in the direction d longitudinal extension (8) of the wiper blade (2) and being mounted on the upper part (10) and / or the lower part (12) by a rotary joint (20), in particular the connecting elements (18) allowing the movement of the upper part (10) and the lower part (12) relative to one another with a component of movement in the direction of longitudinal extension (8) of the broom. wiper (2). 14 °) Method for fixing a device for fixing a windscreen wiper device to a fastening element of a vehicle consisting of: - introducing the fastener element into a first reception range of the vehicle; fastening device and, - rotating the locking element of the fastening device about a first axis of rotation substantially perpendicular to the direction of longitudinal extension of the fastening element to make the catch between the locking element and the fastener. Method for releasing a device for attaching a windscreen wiper device to a vehicle fastener comprising: rotating the locking member of the fastening device about a first axis rotation substantially perpendicular to the direction of longitudinal extension of the fastener to release the plug between the locking member and the fastener and - move the fastener and fastener away.